40618469508 has 12 divisors (see below), whose sum is σ = 94776428880. Its totient is φ = 13539489832.

The previous prime is 40618469443. The next prime is 40618469509. The reversal of 40618469508 is 80596481604.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40618469509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692436218 + ... + 1692436241.

It is an arithmetic number, because the mean of its divisors is an integer number (7898035740).

Almost surely, 2^40618469508 is an apocalyptic number.

It is an amenable number.

40618469508 is an abundant number, since it is smaller than the sum of its proper divisors (54157959372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40618469508 is a wasteful number, since it uses less digits than its factorization.

40618469508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384872466 (or 3384872464 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 40618469508 in words is "forty billion, six hundred eighteen million, four hundred sixty-nine thousand, five hundred eight".